[MadMan]

Typical among carbureted cars. The people working on them were in a firm mindset of 'fuck all this computer bullshit cuz I can't be bothered to understand it' and just destroy and disable what little engine control the car could've benefited from.

Anyhow, I see in the picture from autoweek, that the cruise control device is by the blower motor, but the one you're holding seems to have a cable no longer than 2 inches. If that's the case, yours would've been mounted real close to the carb, and likely not had a cable sleeve at all. Looking at the pic of the throttle lever with the broken ball chain, the actuator likely sits directly forward of it, as you only have maybe a 20 degree rotational tolerance of where it sits, since the actuator will need to pull in a straight line. You know what I mean?

In your book somewhere, there should be a vacuum diagram. Failing that, hopefully the vacuum routing sticker is still available under the hood of the car somewhere. Either will likely take a while to decipher, but should indicate the proper connection of the cruise actuator and that mystery solenoid.

Typically, though, for the cruise actuator, if should only take one vacuum line straight from manifold vacuum. Not quite sure why it has two ports, unless perhaps one is a takeoff for something else, or perhaps it goes to a vacuum reservoir. Not sure.